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I have replaced all of the fuel lines and return lines, o-rings, caps, filter, bypassed the fuel tank selector and installed a Holley Red( bypassing the manual lift pump).
She cranks up and idles fine, I can take her on the highway and with no problems...except one. When I have her up to highway speeds and I let off the go pedal, she stumbles and little until I get to a lower speed and then she smooths out. If I put it in nuetral, it stops stumbling and if I tap the go pedal it stops (sometimes).
I was thinking it might have something to do with the exhaust, like maybe too much back pressure or something but that doesn't make much sense. (it's the O.E exhaust) I checked all the hose fittings eveything is tight and nothing is leaking. Am I drawing in air? Where could it be?
You say you replaced the fuel lines. Did this include the return lines to the tank? I found my problem on my 93 was a fuel return line along the frame.
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